Biosolid mix digester

The customer

• Size: Medium-large enterprise
• Sector: Waste management
• Country: United Kingdom

The Project

• Size: 85-100 man-hours
• Duration: 4-5 weeks

The Problem

• Design of a small capacity, low density sludge mixer
• Mixing devices evaluation in terms of mechanical power needs and mixing efficiency

Proposed solution

• Concept evaluation of different mixing devices and vessel geometries
• Design optimization of the best concept

The simulations

• Transient dynamic simulation for the different mechanical agitators (CFD analysis)
• Mixing efficiency evaluation and mechanical power demand (CFD analysis)

Project overall results

• Mixing efficiency increase of 22% over state of the art commercial mixers
• Savings over £65,000 for the customer in prototyping and testing (estimate)
• Savings of more than 28 weeks in development time (estimate)